You mean is it okay or is it safe? If the latter, well, nothing is safe in this game Barely a few days ago I reported a guy selling music stolen from my friend! He popped up on the forum and started whining how poor his sales were, so I checked his portfolio and it turned out that he simply sells other people’s music. How someone can be so malicious to come up with something like this? It’s just beyond me.
Anyways, I believe there’s no reason to be paranoid. Putting your music on streaming services has more benefits than harms. The reason I’m doing this is not so much for extra income (it makes only pennies) but it’s to get the albums and tracks released more “officially”. If the music has been “really released” it’s easier for me to argue any copyright disputes, and it lifts the “profile” of the music a bit, when the album has a real UPC bar-code, each track has a real ISRC number, and it has been officially released through real channels. It just makes it “more professional”.